Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > FBMOV Series FBMOV Varistor Series RoHS Description The Littelfuse FBMOV Series thermally protected and non-fragmenting varistor represents a new development in circuit protection. It consists of a 40kA varistor building block (MOV) with an integral thermally activated element designed to open in the event of overheating due to abnormal over-voltage, limited current conditions. FBMOV series devices also include a varistor series fuse which prevents the part from rupturing when subjected to high fault current (up to 200kA).The tubular fuse-like body allows for easy mechanical connection in the application. Another feature of FBMOV is an indicator lead, which may be connected to monitoring circuitry and used to signal if the MOV has been disconnected. Applications • Type 1 SPD (Surge Protection Device) Products FBMOV series devices offer quick thermal response due to the close proximity of the integrated fusing thermal element to the MOV body. The integrated configuration also offers lower inductance than most discreet solutions resulting in improved clamping performance to fast overvoltage transients. • Power supplies • Transformer • Residential Service Panel • Power distribution • Telecommunication • IT/Data Center Features • RoHS compliant and Lead–free Absolute Maximum Ratings • For ratings of individual members of a series, see Device Ratings and Specifications chart Continuous: Steady State Applied Voltage: DC Voltage Range (VM(DC)) AC Voltage Range (VM(AC)RMS) FBMOV Series Units 150 to 970 V 115 to 750 V Transient: Non-Repetitive Surge Current, 40,000 8/20µs Waveform (ITM) Non-Repetitive Energy Capability, 340 to 1340 2ms Waveform (WTM) Operating Ambient Temperature Range -55 to +85 (TA) -55 to +125 Storage Temperature Range (TSTG) Temperature Coefficient (aV) of Clamping <0.01 Voltage (VC) at Specified Test Current Hi-Pot Encapsulation (Isolation Voltage 2500 Capability) COATING Insulation Resistance >1000 • Will open circuit without rupture during UL 1449 Intermediate Current Test of 100A, 500A and 1,000A, and Short Circuit Current Test of 200,000A • Indicator Lead for monitoring MOV A J C O O C %/OC V MΩ Additional Information Datasheet Resources Samples © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16 Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > FBMOV Series FBMOV Series Ratings & Specifications Maximum Rating (85°C) Continuous Part Number Specifications (25°C) Transient Peak Current 8 x 20µs Maximum Clamping Volt VC at 200A Current (8/20µs) Varistor Voltage at 1mA DC Test Current Typical Capacitance f = 1MHz AC Volts DC Volts Energy (2ms) VM(AC)RMS VM(DC) WTM ITM Min VN(DC) Max VC C FBMOV115M FBMOV130M FBMOV140M (V) 115 130 140 (V) 150 170 180 (J) 340 380 420 (A) 40000 40000 40000 (V) 162 184.5 198 (V) 180 205 220 (V) 198 225.5 242 (V) 295 335 355 (pF) 6400 5600 5000 FBMOV150M 150 200 440 40000 216 240 264 390 4600 FBMOV175M FBMOV230M FBMOV250M FBMOV275M FBMOV300M FBMOV320M FBMOV385M FBMOV420M FBMOV440M FBMOV460M FBMOV510M FBMOV550M FBMOV625M FBMOV750M 175 230 250 275 300 320 385 420 440 460 510 550 625 750 225 300 320 350 385 420 505 560 585 615 670 745 825 970 500 600 660 700 740 780 860 920 940 980 1040 1100 1200 1340 40000 40000 40000 40000 40000 40000 40000 40000 40000 40000 40000 40000 40000 40000 243 324 351 387 423 459 558 612 643.5 675 738 819 900 1080 270 360 390 430 470 510 620 680 715 750 820 910 1000 1200 297 396 429 473 517 561 682 748 786.5 825 902 1001 1100 1320 450 585 640 700 765 825 1010 1100 1160 1220 1335 1475 1625 1950 3800 3000 2800 2500 2300 2160 1800 1640 1580 1500 1360 1260 1110 920 NOTE: Average power dissipation of transients not to exceed 2.5W. See Figures 3 and 4 for more information on power dissipation. PERCENT OF RATED VALUE 100 90 80 70 60 50 40 30 20 100 50 60 70 80 90 100 110 120 130 140 150 AMBIENT TEMPERATURE ( oC) FIGURE 1. CURRENT, ENERGY AND POWER DERATING For applications exceeding 85° C, ambient temperatures, the peak CURVE surge current and energy rating must be reduces as shown in Figure 1. © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16 O1 = Virtua T = Time T 1 = Virtua T 2 = Virtua 90 50 Example: For 8 s = T1 = V 20 s = T 2 = V 10 O1 10 0 -55 Peak Pulse Current Test Waveform PERCENT OF PEAK VALUE Peak Current, Energy and Power De-rating Curve T TIME T1 T2 FIGURE 2. PEAK PULSE CURRENT TE 01 = Virtual Origin of Wave T = Time from 10% to 90% of Peak T1 = Rise Time = 1.25 x T T2 = Decay Time Example - For an 8/20 µs Current Waveform: 8µs = T1 = Rise Time 20µs = T2 = Decay Time Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > FBMOV Series V-I Characteristic Curves Pulse Rating Curves 100000 10000 1 440 420 385 2 550 510 460 750 1000 115 100 0.00001 0.0001 0.001 0.01 140 130 0.1 150 175 1 10 230 250 100 275 300 10 10000 Surge Current (A) Maximum Peak Voltage (V) 625 10 1000 10 3 10 4 10 320 100 2 10 5 6 ∞ 1000 Peak Current (A) Dimensions 10000 100000 10 10 100 1000 10000 Impulse Duration (µs) Part Numbering System Typical Dimensions in Milimeters [Inches] FBMOV 115 M DEVICE FAMILY Littelfuse Thermally Protected MOV + Fuse VM(AC)RMS SERIES DESIGNATOR M: 3-Leaded Part 115V to 750V Notes: Typical weight: BA Series:250g and BB Series: 600g Dimensions are in mm; inches in parentheses for reference only. © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16